WSA_QOS_BAD_OBJECT - 11013 (0x2B05)
Problem with some part of the filterspec or providerspecific buffer in general.
Updated: Feb 21, 2026
Technical Meaning
The error code WSA_QOS_BAD_OBJECT with the numeric value 11013 and hexadecimal representation 0x2B05 indicates an issue related to a problem with some part of the filterspec or providerspecific buffer in general. This error is typically encountered when working with Quality of Service (QoS) configurations in Windows networking applications.
Error Details
The WSA_QOS_BAD_OBJECT error suggests that there is a misconfiguration or an invalid state within the QoS-related objects being used by the application. Specifically, this could involve issues such as incorrect filterspecs or providerspecific buffers that are not properly formatted or do not adhere to the expected structure.
Usage Context
This error can occur in various scenarios where applications interact with network Quality of Service (QoS) settings. It is commonly encountered when setting up QoS policies, configuring traffic shaping rules, or managing network bandwidth allocation.
Developer Interpretation
Developers should interpret this error as an indication that the application has attempted to use a QoS-related object in a manner that violates its expected usage constraints. This could be due to incorrect parameter values, invalid object types, or exceeding certain limits imposed by the system.
Related Errors
- WSA_QOS_BAD_SPEC: Indicates a problem with the QoS specification itself.
- WSA_QOS_NO_OBJECTS: No QoS objects are available for configuration.
- WSA_QOS_OPERATION_NOT_SUPPORTED: The operation being attempted is not supported by the current QoS configuration.
FAQ
What does WSA_QOS_BAD_OBJECT mean?
This error indicates a problem with some part of the filterspec or providerspecific buffer in general, suggesting an issue with the QoS-related objects used by the application.
How can I troubleshoot this error?
Review the context and parameters of your QoS configuration to ensure they are correct. Verify that all object types and buffers are properly formatted and adhere to the expected structure.
Summary
The WSA_QOS_BAD_OBJECT error is a generic indication of an issue with QoS-related objects in Windows networking applications. Developers should focus on validating parameters, confirming object types, and ensuring proper usage context when encountering this error.